Tale of the Tapes: IRS head confirms investigators have found backup tapes in Lerner probe

The head of the IRS confirmed Wednesday that investigators looking into missing emails from ex-agency official Lois Lerner have found and are reviewing "backup tapes" -- despite earlier IRS claims that the tapes had been recycled.

IRS Commissioner John Koskinen, testifying before a House oversight subcommittee, stressed that he does not know "how they found them" or "whether there's anything on them or not." But he said the inspector general's office advised him the investigators are reviewing tapes to see if they contain any "recoverable" material.

The revelation is significant because the IRS claimed, when the agency first told Congress about the missing emails, that backup tapes "no longer exist because they have been recycled."